Indicate the element and the # of atoms of that element present in 2 molecules of acetic acid (CH3COOH).

Q: How many atoms of He can a balloon hold that has a 21 cm diameter hold? The density of Helium is…

A: Radius, r=diameter2=212=10.5 cm volume of spherical baloon…

Q: On earth, tin has 10 different stable isotopes. The heaviest, 124Sn makes up 5.80% of naturally…

A: Grams of 124Sn present in 38.3 g sample     = 38.3*(5.80/100)= 2.22 g

Q: Please solve a, b, c thank you

A: Lead(IV) selenite is Pb(SeO3)2  Molar mass of compound = 461.2 gm/mol  Mass of compound = 12.47 gm

Q: A tube of toothpaste contains 0.76 g of sodium monofluorophosphate (Na2PO3F) in 100 mL.(a) What mass…

A:

Q: The organophosphate nerve agent A-234 is believed to have the formula C5H8F2NO3P. It is one of the…

A: Molecular formula: C5H8F2NO3P Isotope of organophosphate nerve agent with molecular formula…

Q: How many hydrogen atoms are in one molecule of vitamin E?

A:

Q: How many grams of CH3CO2C5H11 must be weighed out to provide 3.22 x 1023 atoms of H? When you input…

A: Mole in terms of particles : 1 mol = 6.022 x1023 particles  where particles =…

Q: 7. State the chemical composition (constituent elements and number of atoms of each element) for a…

A: Given  is a molecule of citric acid whose molecular formula is C3H4OH(COOH)3.  Chemical composition…

Q: ow do I find how many atoms are in 3.80g of silver?

A: Introduction: We have calculate the atoms in 3.80g of silver.

Q: a certain compound contains 54.0 g or carbon and 10.5g of hydrogen. its relative molecular mass is…

A: Given,54.0 g of carbon and 10.5g of hydrogen.The molar mass of this compound is 86 g/mol.Molar mass…

Q: How many Oxygen are in 6.913x10^23 molecules of nitroglycerin C3H5N3O9?

A: Given question is checking our mole concept principal. In this question, number of molecules of…

Q: Diamond is one form of an elemental carbon. An engagement ring contains a diamond weighing 1.25…

A: Given, Diamond is one form of an elemental carbon and an engagementring contains a diamond weighing…

Q: Calculate the average atomic mass of Amazium, a newly discovered element (Amazium, symbol Az) which…

A: Given :- There are only 2 naturally occurring isotopes of Amazium. Mass of isotope Az-230 = 229.995…

Q: What is the mass of one mole of ethyl alcohol

A: Mole is defined as a) Interms of particles :       1 mol = 6.022 x1023 particles/entities  Where…

Q: How many carbon atoms are contained within 10.0 pounds of sugar, (sucrose) which has the formula…

A:

Q: A hydrogen-filled balloon is ignited and 1.50 g of hydrogen is reacted With 12.Q..g__of oxygen. H_ow…

A: Given, amount of Hydrogen = 1.50 g amount of oxygen = 12.0 g here we have to find amount of water…

Q: How many hydrogen atoms are in 27 molecules of diborane, B₂H₆?

A: The molecular formula of diborane is B2H6 We need to find number of hydrogen atoms present in 27…

Q: Calculate (a) the number of atoms in 1.05 × 10−6 mole of helium and (b) the number of moles of…

A: a.

Q: For 2.526 g of a compound containing only copper and oxygen, CuxOy, a student found that it…

A: From the mass of compound and mass of Cu ,we can determine the mass of oxygen. Then using molar mass…

Q: What is the mass of a mole of electrons if one electronhas a mass of 9.11 × 1 0 -28 g?

A: Because, 1 mole=6.022×1023 molecules/particles Therefore, 1 mole of electron=6.022×1023 electrons

Q: According to the law of multiple proportions, if 12 g of carbon combine with 16 g of oxygen to form…

A: According to the law of multiple proportion, two atoms combining in different ratios to form…

Q: a 500. mg tablet of vitamin C, C6H8O6 NOTE THE UNITS OF mg. (a)how many ATOMS are in the vitamin C…

A: GIven ,Molecular mass of vitamin C C6H6O8=176.12g/mol.Given mass of 500mg=0.5ga).Atoms  in the…

Q: 6. (ii) One coin has a mass of 5.00g and contains 84.0% of copper, by mass. Calculate the number of…

A: Mass of one coin is = 5.00 g The percent of Cu in the coin is = 84.0 % The number of copper atoms in…

Q: How many grams of sugar C12H22O11 that consists of 1.25 x 1024 atoms of hydrogens?

A: Given that ; We have to determine the mass of sugar (in g) that consists of 1.25 x 1024 atoms of…

Q: . How many ATOMS of carbon are present in 9.01 grams of carbon tetrachloride ?

A: Number of moles = mass/molar mass  Molar mass of CCl4 = 153.82 g/mol  1 mol = 6.022 × 1023…

Q: How many N atoms in a sample of C7H5(NO2)3 that has the same number of O atoms as 13.0 g C6H12O6?

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: H,O, + HgO - H,0 + 0,+ Hg How many atoms of H,0, are in 5.36 x 102 atoms of HgO?

A: Given, the chemical reaction as follows,H2O2+HgO→H2O+O2+Hgnumber of atoms of HgO =5.36×1022 atomswe…

Q: How many atoms of calcium are in 1.00 g?

A: Given  Mass of calcium    = 1 gram  Number of atoms = ?

Q: How many grams of K2C2O4, potassium oxalate, would containe 182 grams of pure potassium?

A: The molar mass of potassium oxalate can be calculated as:

Q: Determine the mass (in grams) of aluminum present in 1.07 grams of Al2S3? Do not type units into…

A:

Q: A given sample of xenon fluoride contains molecules of a single type XeFn, where n is some whole…

A:

Q: Do you round before or after multiplying the molecular mass of an element for example I multiplied…

A: Given  Molar mass of Carbon =12.011  Then Molar mass of  C12 =?

Q: What is the total mass of hydrogen in each of the molecules?(a) CH4(b) CHCl3(c) C12H10O6(d)…

A: Mass of an atom of hydrogen is 1 g/mol.

Q: a. How many hydrogen atoms are in the picture? Nitrogen? b. Does the formula indicate how many atoms…

A:

Q: b. U.00004042 fng 4.042 x 10-5 mg Which sample of element is heavier? Show appropriate calculations…

A: Given: The moles of N2 = 2 moles. The moles of Fe = 1 mol. The moles of F2  = 1.5 moles.

Q: Calculate the number of atoms in each of the element in 1.0253 g of glucose, C6H12O6.

A: Given: Mass of C6H12O6 = 1.0253 g.

Q: How many hydrogen atoms are in 35 molecules of diborane, B₂H₆?

A: The molecular formula of diborane is B2H6. The structure of diborane is as follows:

Q: A sample of Cs weighs 88.1 grams. Will a sample of Ti that contains the same number of atoms weigh…

A: Using the relationship between given mass and molar mass, the number of moles of a substance can be…

Q: A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219…

A:

Q: Q2. A compound of copper and sulfur contains 111.99 g of metal and 113.04 g of nonmetal. How many of…

A: • Here is given that, a compound contains copper and sulfur atoms . • And we know that, copper is a…

Q: 7. What is the mass in grams, of Vitamin C (C6H8O6) that contains 1.076 grams of carbon?

A: Given mass of Carbon = 1.076 g Molar mass of Carbon = 12.01 g/mol Molar mass of C6H8O6 = 176.12…

Q: For 2.634 g of a compound containing only copper and oxygen, CuxOy, a student found that it…

A: We have to calculate the moles of oxygen.

Q: Elements/ Compound Name Chemical Formula Number of atoms Total number of atoms Hydrochloric acid HCI…

A: The number of atoms can be determined by looking at the subscripts on the symbol of the different…

Q: How many of the indicated atoms are represented by eachchemical formula: (a) carbon atoms in…

A: The number of indicated atoms present in each chemical formula are:

Q: An aluminum-containing compound has the formula Mg, Al,0, and is 44.98% oxygen by mass. What is the…

A: Given: mass percent of O = 44.98 % Formula of compound: MgxAlyO4 molar mass of O = 16 g/mol molar…

Q: determine the number of each type of atom in NH4Cl

A:

Q: Assume that for the following molecules, carbon=12 amu, hydrogen= 1 amu, nitrogen= 14 amu and…

A: • Molecular oxygen is a diatomic molecule consists of two oxygen atoms held together by a covalent…

Q: g) How many grams of K2C2O4, potassium oxalate, would contain 182 grams of pure potassium?

A: One mole of K2C2O4 has two moles of potassium.   The molar mass of K2C2O4 is 166.22 g/mol   And…

Q: In one experiment you reacted 45.7g of Aluminum with 182.8g of Iron (III) oxide to produce Aluminum…

A: GivenAluminium reacts with Ferric oxide to produce Aluminium oxide and ironThe mass of aluminium=…

Q: Calculate the mass of dinitrogen tetroxide N2O4 that contains a million ×1.000106 oxygen atoms.

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.